Rag & Bone Calder Button Up in White. - size L (also in ) Rag & Bone Calder Button Up in White. - size L (also in ) Keen on innovation, Rag & Bone crafts an alternatively styled poplin top. The Calder Button Up offers reversible styling with a cropped front and shirttail hem for that perfectly undone finish.. Viscose blend. Dry clean only. Button front closures with tie detail. Button cuffed sleeves. RGBR-WS15. W274A19SF. From its inception in 2002, rag & bone distinguished itself by combining British heritage with directional, modern design. Today, the brand has become synonymous with the understated New York aesthetic by effortlessly blending classic tailoring with a wearable edge. While creating beautiful clothes has been their focus, rag & bone prides itself in the time-honored techniques of supremely skilled, local manufacturers at some of the oldest factories in the country. The importance of quality, expert craftsmanship and attention to detail resonated deeply, informing the brand?s core philosophy.